Wed·Nov 14, 2018Wednesday·November 14, 2018

1. 01*

   NA61/SHINE Levy HBT measurements in Be+Be collisions at 150A GeV/c

   Barnabas Porfy (for the NA61/SHINE collaboration)🇭🇺

   The program of NA61/SHINE allows for the investigation of the phase diagram of strongly interacting matter. The nature of the quark-hadron transition can be studied through analyzing the space-time structure of the hadron emission source via the measurement of Bose-Einstein momentum correlations. These can be described by correlation functions based on Levy-distributed sources. This report presents the performance plots of Bose-Einstein correlation analysis in Be+Be collisions at 150A GeV/c beam momentum. The transverse mass dependence of the Levy source parameters and their possible interpretations are discussed.

   nucl-ex1 citation
2. 02*

   Testing a best-fit hydrodynamical model using PCA

   Tiago Nunes da Silva🇧🇷 · David Dobrigkeit Chinellato🇧🇷 · Rafael Derradi de Souza🇧🇷 · Mauricio Hippert🇧🇷 · Matthew Luzum🇧🇷 · Jorge Noronha🇧🇷 · Jun Takahashi🇧🇷

   Recently, a comprehensive Bayesian analysis was performed to simultaneously extract the values of a number of hydrodynamic parameters necessary for compatibility with a limited set of experimental data from the LHC. In this work, this best-fit model is tested against newly measured experimental flow results not included in the original work, namely the principal components of the two-particle correlation matrix in transverse momentum. The results from simulations show a good numerical agreement with data obtained by the CMS Collaboration.

   ↳ nucl-thhep-phnucl-exMDPI Proc.(2019)·6 citations
3. 03*

   Main parameters of SppC-based "linac-ring eA" and "ring-ring muA" colliders

   Bora Ketenoglu🇹🇷

   Concerning future lepton-nucleus colliders, International Linear Collider (ILC) and Plasma Wake Field Accelerator-Linear Collider (PWFA-LC) electrons in order of 0.5 TeV and 5 TeV, respectively, colliding with Super proton-proton Collider (SppC)'s 3075 TeV lead ions, are considered as "linac-ring eA" options. In addition, 1.5 TeV option of the Muon Collider (MC) vs 3075 TeV lead ions of the SppC is also taken into account as a "ring-ring muA" collider. Luminosity values of the SppC-based eA and muA colliders are estimated. 3075 TeV lead parameters for 100 km-circumference option of the SppC are taken into account to optimize luminosities of electron-nucleus and muon-nucleus collisions, keeping beam-beam effects and disruption in mind. It is shown that luminosities of order of 10^30 cm^-2s^-1 can be achieved by moderate upgrades of lepton and nucleus beam parameters.

   ↳ physics.acc-phhep-exnucl-ex3 citations
4. 04*

   Nuclear probes of an out-of-equilibrium plasma at the highest compression

   G. Zhang🇨🇳 · M. Huang · A. Bonasera🇺🇸 · Y.G. Ma🇨🇳 · B.F. Shen🇨🇳 · H.W. Wang · W.P. Wang · J.C. Xu · G.T. Fan🇨🇳 · H.J. Fu🇨🇳 · H. Xue · H. Zheng and 11 other authors

   We report the highest compression reached in laboratory plasmas using eight laser beams, E${}_{laser}$$\approx$12 kJ, ${\tau }_{laser}$=2 ns in third harmonic on a CD${}_2$ target at the ShenGuang-II Upgrade (SGII-Up) facility in Shanghai, China. We estimate the deuterium density ${\rho }_D$= 2.0 $\pm$ 0.9 kg/cm${}^3$, and the average kinetic energy of the plasma ions less than 1 keV. The highest reached areal density $\Lambda {\rho }_D$=4.8 $\pm$ 1.5 g/cm${}^2$ was obtained from the measured ratio of the sequential ternary fusion reactions (dd$\to$t+p and t+d$\to$$\alpha$+n) and the two body reaction fusions (dd$\to$${}^3$He+n). At such high densities, sequential ternary and also quaternary nuclear reactions become important as well (i.e. n(14.1 MeV) + ${}^{12}$C $\to$ n'+${}^{12}$C* etc.) resulting in a shift of the neutron (and proton) kinetic energies from their birth values. The Down Scatter Ratio (DSR-quaternary nuclear reactions) method, i.e. the ratio of the 10-12MeV neutrons divided by the total number of 14.1MeV neutrons produced, confirms the high densities reported above. The estimated lifetime of the highly compressed plasma is 52 $\pm$ 9 ps, much smaller than the lasers pulse duration.

   ↳ physics.plasm-phnucl-exPLA(2019)·7 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.